1089996432858 has 16 divisors (see below), whose sum is σ = 2422214295360. Its totient is φ = 363332144268.

The previous prime is 1089996432799. The next prime is 1089996432929. The reversal of 1089996432858 is 8582346999801.

1089996432858 is a `hidden beast` number, since 10 + 8 + 99 + 96 + 432 + 8 + 5 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10092559510 + ... + 10092559617.

It is an arithmetic number, because the mean of its divisors is an integer number (151388393460).

Almost surely, 2^{1089996432858} is an apocalyptic number.

1089996432858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1089996432858 is an abundant number, since it is smaller than the sum of its proper divisors (1332217862502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089996432858 is a wasteful number, since it uses less digits than its factorization.

1089996432858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20185119138 (or 20185119132 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 72.

The spelling of 1089996432858 in words is "one trillion, eighty-nine billion, nine hundred ninety-six million, four hundred thirty-two thousand, eight hundred fifty-eight".